diff --git a/airbyte-config/init/src/main/resources/seed/source_definitions.yaml b/airbyte-config/init/src/main/resources/seed/source_definitions.yaml
index c3f0ffdab74af..10cfb9474c164 100644
--- a/airbyte-config/init/src/main/resources/seed/source_definitions.yaml
+++ b/airbyte-config/init/src/main/resources/seed/source_definitions.yaml
@@ -45,7 +45,7 @@
 - sourceDefinitionId: b5ea17b1-f170-46dc-bc31-cc744ca984c1
   name: Microsoft SQL Server (MSSQL)
   dockerRepository: airbyte/source-mssql
-  dockerImageTag: 0.3.4
+  dockerImageTag: 0.3.5
   documentationUrl: https://docs.airbyte.io/integrations/sources/mssql
   icon: mssql.svg
 - sourceDefinitionId: d8286229-c680-4063-8c59-23b9b391c700
@@ -56,7 +56,7 @@
 - sourceDefinitionId: decd338e-5647-4c0b-adf4-da0e75f5a750
   name: Postgres
   dockerRepository: airbyte/source-postgres
-  dockerImageTag: 0.3.9
+  dockerImageTag: 0.3.10
   documentationUrl: https://docs.airbyte.io/integrations/sources/postgres
   icon: postgresql.svg
 - sourceDefinitionId: 9fa5862c-da7c-11eb-8d19-0242ac130003
@@ -101,7 +101,7 @@
 - sourceDefinitionId: 435bb9a5-7887-4809-aa58-28c27df0d7ad
   name: MySQL
   dockerRepository: airbyte/source-mysql
-  dockerImageTag: 0.4.3
+  dockerImageTag: 0.4.4
   documentationUrl: https://docs.airbyte.io/integrations/sources/mysql
   icon: mysql.svg
 - sourceDefinitionId: 2470e835-feaf-4db6-96f3-70fd645acc77
diff --git a/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordIterator.java b/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordIterator.java
index 38e9e8298f087..6b65d396fa78c 100644
--- a/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordIterator.java
+++ b/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordIterator.java
@@ -63,6 +63,7 @@ public class DebeziumRecordIterator extends AbstractIterator<ChangeEvent<String,
   private final VoidCallable requestClose;
   private boolean receivedFirstRecord;
   private boolean hasSnapshotFinished;
+  private boolean signalledClose;
 
   public DebeziumRecordIterator(LinkedBlockingQueue<ChangeEvent<String, String>> queue,
                                 CdcTargetPosition targetPosition,
@@ -74,6 +75,7 @@ public DebeziumRecordIterator(LinkedBlockingQueue<ChangeEvent<String, String>> q
     this.requestClose = requestClose;
     this.receivedFirstRecord = false;
     this.hasSnapshotFinished = true;
+    this.signalledClose = false;
   }
 
   @Override
@@ -103,7 +105,7 @@ protected ChangeEvent<String, String> computeNext() {
       hasSnapshotFinished = hasSnapshotFinished(eventAsJson);
 
       // if the last record matches the target file position, it is time to tell the producer to shutdown.
-      if (shouldSignalClose(eventAsJson)) {
+      if (!signalledClose && shouldSignalClose(eventAsJson)) {
         requestClose();
       }
       receivedFirstRecord = true;
@@ -135,8 +137,7 @@ private boolean hasSnapshotFinished(JsonNode eventAsJson) {
    */
   @Override
   public void close() throws Exception {
-    requestClose.call();
-    throwExceptionIfSnapshotNotFinished();
+    requestClose();
   }
 
   private boolean shouldSignalClose(JsonNode eventAsJson) {
@@ -146,6 +147,7 @@ private boolean shouldSignalClose(JsonNode eventAsJson) {
   private void requestClose() {
     try {
       requestClose.call();
+      signalledClose = true;
     } catch (Exception e) {
       throw new RuntimeException(e);
     }
diff --git a/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordPublisher.java b/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordPublisher.java
index 8c7ebd6c0991e..1eb4234100ad1 100644
--- a/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordPublisher.java
+++ b/airbyte-integrations/bases/debezium/src/main/java/io/airbyte/integrations/debezium/internals/DebeziumRecordPublisher.java
@@ -98,13 +98,6 @@ public void start(Queue<ChangeEvent<String, String>> queue) {
             boolean inserted = false;
             while (!inserted) {
               inserted = queue.offer(e);
-              if (!inserted) {
-                try {
-                  Thread.sleep(10);
-                } catch (InterruptedException interruptedException) {
-                  throw new RuntimeException(interruptedException);
-                }
-              }
             }
           }
         })
diff --git a/airbyte-integrations/connectors/source-mssql/Dockerfile b/airbyte-integrations/connectors/source-mssql/Dockerfile
index 6a9e86c5fb704..b73819559a359 100644
--- a/airbyte-integrations/connectors/source-mssql/Dockerfile
+++ b/airbyte-integrations/connectors/source-mssql/Dockerfile
@@ -8,5 +8,5 @@ COPY build/distributions/${APPLICATION}*.tar ${APPLICATION}.tar
 
 RUN tar xf ${APPLICATION}.tar --strip-components=1
 
-LABEL io.airbyte.version=0.3.4
+LABEL io.airbyte.version=0.3.5
 LABEL io.airbyte.name=airbyte/source-mssql
diff --git a/airbyte-integrations/connectors/source-mysql/Dockerfile b/airbyte-integrations/connectors/source-mysql/Dockerfile
index 28350e873fb8d..be143ba62883d 100644
--- a/airbyte-integrations/connectors/source-mysql/Dockerfile
+++ b/airbyte-integrations/connectors/source-mysql/Dockerfile
@@ -8,6 +8,6 @@ COPY build/distributions/${APPLICATION}*.tar ${APPLICATION}.tar
 
 RUN tar xf ${APPLICATION}.tar --strip-components=1
 
-LABEL io.airbyte.version=0.4.3
+LABEL io.airbyte.version=0.4.4
 
 LABEL io.airbyte.name=airbyte/source-mysql
diff --git a/airbyte-integrations/connectors/source-postgres/Dockerfile b/airbyte-integrations/connectors/source-postgres/Dockerfile
index 4dd7d07dae0fb..77b233ac63614 100644
--- a/airbyte-integrations/connectors/source-postgres/Dockerfile
+++ b/airbyte-integrations/connectors/source-postgres/Dockerfile
@@ -8,5 +8,5 @@ COPY build/distributions/${APPLICATION}*.tar ${APPLICATION}.tar
 
 RUN tar xf ${APPLICATION}.tar --strip-components=1
 
-LABEL io.airbyte.version=0.3.9
+LABEL io.airbyte.version=0.3.10
 LABEL io.airbyte.name=airbyte/source-postgres